На в 8: 10 8: 15 8: 20 20: 30 20: 45

8:10 it is ten minutes past eight.

8:15 it is a quarter past eight.

8:20 it is twenty minutes past eight.

20:30 it is half past 8 p.m.

20:45 it is a quarter to nine p.m.

8:10 - ten past eight

8:15 - quarter past eight

8:20 - twenty past eight

20:30 - half past ten

20:45 - quarter to eleven